/* ==========================================
   CSS VARIABELEN & RESET (70/20/10 - ROYAL BLUE)
   ========================================== */
:root {
    /* 70% Royal Blue & Vlakken */
    --color-bg: #1e40af;           /* Royal Blue basis (70%) */
    --color-surface: #1e3a8a;      /* Dieper blauw voor kaarten */
    --color-surface-hover: #172554;/* Donkerder blauw bij hover */
    --color-primary: #3b82f6;      /* Helder blauw accent */
    --color-primary-hover: #2563eb;
    --color-accent: #ffffff;       /* Wit voor acties */
    --color-accent-hover: #f3f4f6;
    --color-border: #3b82f6;       /* Subtiele blauwe border */
    
    /* 20% Wit (Tekst en leesbaarheid) */
    --color-text-main: #ffffff;    /* Wit */
    --color-text-muted: #93c5fd;   /* Lichtblauwig wit voor secundaire tekst */
    
    /* 10% Zwart (Diepte en contrast) */
    --color-black-deep: #0f172a;   /* Diepzwart/donker voor footer en schaduwen */
    
    --font-main: 'Plus Jakarta Sans', sans-serif;
    
    --transition: all 0.3s ease;
    --shadow-sm: 0 4px 6px -1px rgba(15, 23, 42, 0.4);
    --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.6);
    --radius: 12px;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ==========================================
   ALGEMENE LAYOUT & CONTAINER
   ========================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 1.125rem;
}

/* ==========================================
   KNOPPEN (BUTTONS)
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-main);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
}

.btn-accent {
    background-color: #ffffff; /* Wit accent (20%) */
    color: var(--color-bg);    /* Royal blue contrast */
    box-shadow: var(--shadow-sm);
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ==========================================
   STICKY NAVBAR
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(30, 64, 175, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    border-bottom-color: rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-text-main);
    letter-spacing: -0.5px;
}

.logo span {
    color: #ffffff;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-list {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: white;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: black;
}

.nav-cta-mobile {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-text-main);
    border-radius: 3px;
    transition: var(--transition);
}

/* ==========================================
   HERO SECTIE
   ========================================== */
.hero {
    padding: 10rem 0 6rem 0;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.3), transparent 60%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.15);
    color: var(--color-text-main);
    padding: 0.35rem 0.85rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-content h1 {
    font-size: 3.25rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
}

.hero-buttons {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.secondary-link {
    color: var(--color-text-main);
    font-weight: 600;
    transition: var(--transition);
}

.secondary-link:hover {
    color: var(--color-text-muted);
}

.hero-mockup {
    background-color: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 1.5rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background-color: #ef4444; }
.dot.yellow { background-color: #f59e0b; }
.dot.green { background-color: #10b981; }

.mockup-title {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.mockup-body {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.mockup-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.2);
    color: #34d399;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.mockup-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.stat-box {
    background-color: var(--color-bg);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-main);
}

.stat-text {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.mockup-progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--color-bg);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    width: 75%;
    height: 100%;
    background-color: #ffffff;
    border-radius: 4px;
}

/* ==========================================
   GRID LAYOUTS & KAARTEN
   ========================================== */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.grid-2-split {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.card {
    background-color: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: var(--shadow-lg);
}

.icon-wrapper {
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-text-main);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ==========================================
   OPLOSSING SECTIE
   ========================================== */
.oplossing-section {
    background-color: rgba(23, 37, 84, 0.5);
}

.lead-text {
    font-size: 1.15rem;
    color: var(--color-text-main);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.benefits-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.check-icon {
    background-color: rgba(16, 185, 129, 0.2);
    color: #34d399;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: bold;
    font-size: 0.85rem;
    margin-top: 2px;
}

.feature-highlight-box {
    background: linear-gradient(135deg, var(--color-surface), var(--color-surface-hover));
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    box-shadow: var(--shadow-lg);
}

.feature-highlight-box h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-highlight-box p {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.mini-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 1.5rem;
}

.mini-stat .number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: #ffffff;
}

.mini-stat .text {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ==========================================
   HOE WERKT HET SECTIE
   ========================================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.step-card {
    background-color: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    position: relative;
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.2);
    line-height: 1;
    margin-bottom: 1rem;
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.step-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ==========================================
   TESTIMONIAL SECTIE
   ========================================== */
.testimonial-section {
    background: linear-gradient(to bottom, var(--color-bg), var(--color-surface));
}

.quote-box {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
    padding: 3rem;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.quote-icon {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.3);
    line-height: 1;
    margin-bottom: 1rem;
    font-family: serif;
}

.quote-box blockquote {
    font-size: 1.25rem;
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 2rem;
    color: var(--color-text-main);
}

.quote-author strong {
    display: block;
    font-size: 1.1rem;
    color: var(--color-text-main);
}

.quote-author span {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* ==========================================
   FINALE CTA SECTIE
   ========================================== */
.cta-banner {
    background-color: #172554;
    padding: 6rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-banner h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #ffffff;
}

.cta-banner p {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
}

/* ==========================================
   FOOTER (10% ZWARTVLAK VOOR DIEPTE)
   ========================================== */
.footer {
    background-color: var(--color-black-deep);
    padding: 4rem 0 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
}

.footer-tagline {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    max-width: 300px;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--color-text-muted);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-text-main);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* ==========================================
   ANIMATIE CLASSES VOOR JS INTERSECTION OBSERVER
   ========================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   RESPONSIVE DESIGN & PRE-REGISTRATIE FORMULIER
   ========================================== */
.pre-register-section {
    padding-top: 9rem;
    min-height: 80vh;
}

.form-container-wrapper {
    max-width: 650px;
    margin: 0 auto;
}

.form-card {
    padding: 3rem;
}

.form-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-main);
}

.required { color: #ffffff; }

input, select {
    width: 100%;
    padding: 0.8rem 1rem;
    background-color: var(--color-bg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: var(--color-text-main);
    font-family: var(--font-main);
    transition: var(--transition);
}

input:focus, select:focus {
    outline: none;
    border-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
}

select option {
    background-color: var(--color-surface);
    color: var(--color-text-main);
}

.checkbox-group {
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
}

.checkbox-group input { width: auto; }

.hidden { display: none !important; }

.success-message {
    text-align: center;
    padding: 2rem 0;
}

.success-icon {
    font-size: 3rem;
    color: #34d399;
    margin-bottom: 1rem;
}

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }

    .grid-3, .steps-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }

    .grid-2-split {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .desktop-cta {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: 0.4s ease-in-out;
        z-index: 999;
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .nav-link {
        font-size: 1.25rem;
    }

    .nav-cta-mobile {
        display: block;
        margin-top: 2rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .footer-container {
        flex-direction: column;
        gap: 2rem;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .form-row { grid-template-columns: 1fr; gap: 0; }
    .form-card { padding: 2rem; }
}